I bought the revenge weekend pack and have managed to earn gold on every single track in the game (both original tickets and these new ones). I have only found 5 new vehicles. The 4 in the video plus the unlockable buggy/sand rail thing.

In the Coyote revenge video on the PSN the guy says that there are "6" new vehicles at about 1minute into the video. Also, at about 2:18 into the video he says that you need to get gold on ALL 9 new tracks to get the unlockable vehicle? This is not true you only need silver on the first 8 and gold on the 9th/final track to get the sand rail. Also, throughout the entire video you see a truck that is not in the game. It has a single spare tire in the back and has the four bars going across the roof.

Each new vehicle debuts with a race once you unlock the ticket that has the race on it. So you don't need to acquire a certain amount of points to unlock the vehicle, you just need to start the race that uses the new vehicle. The only one you truly need to unlock is the new buggy. You get it by earning Gold in the final race which happens to be the 9th race on the revenge weekend.